• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>(Re)Claiming the Underground Space >Investigating the settlement above closely spaced multiple tunnel constructions in soft ground
【24h】

Investigating the settlement above closely spaced multiple tunnel constructions in soft ground

机译：调查软土地基中紧密间隔的多个隧道施工上方的沉降

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The prediction of settlements above tunnels in soft ground is of major importance for both existing surface and subsurface structures. The settlement above single tunnel constructions can be predicted with acceptable accuracy using relatively simple empirical techniques based on the Gaussian curve equation. However, it has been shown by various authors that the settlement trough observed above a second tunnel construction in close proximity to the first tunnel is not well predicted by these techniques. The maximum settlement above the second tunnel is offset towards the first tunnel and the side of the trough closest to the first tunnel exhibits greater relative movements than those on the side of the trough furthest from the first tunnel. This paper outlines research being conducted by the authors to improve empirical predictions by using key findings from simple 2D finite element analyses. A method is proposed that allows the settlements above twin tunnels to be predicted. The method incorporates the fact that the maximum relative increase in settlement occurs above the centreline of the first tunnel driven in twin side by side tunnel problems.
机译：对于现有的地面和地下结构而言，对软土地层隧道上方沉降的预测都具有重要意义。可以使用基于高斯曲线方程的相对简单的经验技术，以可接受的精度预测单个隧道施工之上的沉降。然而，各种作者已经表明，通过这些技术不能很好地预测在紧邻第一隧道的第二隧道构造上方观察到的沉降槽。第二隧道上方的最大沉降量向第一隧道偏移，并且与第一隧道最远的槽侧相比，最靠近第一隧道的槽侧表现出更大的相对运动。本文概述了作者正在进行的，通过使用简单2D有限元分析中的关键发现来改进经验预测的研究。提出了一种方法，可以预测双隧道上方的沉降。该方法包含以下事实：最大沉降量的相对增加发生在双并排隧道问题中驱动的第一个隧道的中心线上方。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号